Nest Wifi + Nest Thermo 3rd gen: interruption in two wifi nodes caused thermo go offline connect mor

[pnutalapati]

Google Nest Wifi: AC 2200(I guess, one generation behind the current one)

Google self learning 3rd gen thermostat: 

• Been connected via 'Home' app and working perfectly since a year. 
• Suddenly two days ago, two nodes on the wifi router went offline and power disconnected, and the thermostat also went offline.
• Restarted the thermostat a couple of times, which restored the power and I can control heat, cold with thermostat at the device only.
• Thermostat is still disconnected from the 'Home' app on the phone.
• Tried searching for the wifi network on thermostat, but could not find any.
• Entered the wifi network name, including the password, but could not connect, no matter, how many times I tried.
• Wifi is running on DHCP auto, 802.11ac, WPA2-Personal, 5GH band, 149 channel
• Additional couple of restart of thermostat had no positive effect
• Distance between the two is approx 20 ft, which was no problem originally.
• Is it necessary to make the wifi router to run the 2.4 GHz also to be able to connect to thermostat, if it is any reason for the problem ? 
• ALL STARTED WITH THE OVERNIGHT GOING OFFLINE OF TWO NODES ON THE WIFI ROUTER. MAY BE A  COINCIDENCE ?

[Markjosephp]

Hi there,

Sorry for the delayed response, @pnutalapati. We'd appreciate you've tried finding a fix.

To clarify, are you receiving any message codes? Have you recently changed the settings on your WiFi router? Also, you might want to look at this link related to your concern.

Keep us in the loop.

Best,

Mark

[Markjosephp]

Hi there,

Just wanted to see if you still needed help. Please let us know if you have any other questions or concerns.

Thanks,

Mark

[Markjosephp]

Hello pnutalapati,

It looks like we haven't heard back from you, so I'm going to lock the thread in 24 hours. If you have any further questions or concerns, feel free to create a new thread. 

Regards,

Mark